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System Research Perspective -through a Sensys lens

System Research Perspective -through a Sensys lens. Sensys Soap Box David Culler UC Berkeley. A System Research “formula”. Imagine a plausible future Create an approximation of that vision using technology that exists. Discover what is True in that world Empirical experience

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System Research Perspective -through a Sensys lens

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  1. System Research Perspective -through a Sensys lens Sensys Soap Box David Culler UC Berkeley

  2. A System Research “formula” • Imagine a plausible future • Create an approximation of that vision using technology that exists. • Discover what is True in that world • Empirical experience • Bashing your head, stubbing your toe, rubbing your nose in it • Quantitative measurement and analysis • Analytics and Foundations Sensys Soapbox

  3. Sensys – Truths • The idle listening problem! • Distributed algorithms (e.g, routing) with bounded per-node state and non-trivial change and uncertainty • Claim and hold the territory we’ve gained • areas of important incremental on-going improvement • Low Power MAC, Multihop Forwarding, .. • Not enough to just improve from paper to paper • Finish the job with standards that matter • Still not a solid dominant MAC • IEEE 802.15.4 superframes/beacon broken, Zigbee punted, Wireless HART?, ISA 100 • 6LoWPAN format done [RFC4944] but MAC interoperability island • Where is the bar? • 99% x 10uA + 1% x 10mA => 110 uA is baseline, 20 uA is research goal • 99.5-9% reliability over multiple 70% link Sensys Soapbox

  4. Sensys – non-Truths (yet) • Excess Redundancy • “Given the excess of redundant WSN nodes…” • Selective Coverage, Capacity spreading, … • In-network processing • At source and dest, but IN? • Placement by “blowing in the wind” • Capacity planning and placement should be easy, but they exist • Points of interest • If you want to utilize “the excess” push the technology to make it real • SOC offerings • Beyond the “mote” • If you want to enable in-network processing, develop and application that actually uses it • Beyond surge (sense and send) • Placement assumptions should reflect placement reality Sensys Soapbox

  5. Imagine… • The Mote “future” is already here • We understand many of the truths and non-truths in that world • Harvest that learning in defining the “next future” • bold, concise, revolutionary goals to shoot for are invaluable • One More Element of “Truth” – • Complexity constraints are even more critical than resource constraints • Zillions of unattended, inaccessible networked devices connected to the physical world engaged in critical functions • The have to be simple, robust, reliable, resilient, provable, … • Beware Complexity Sensys Soapbox

  6. One more thought • Many of the beautiful ideas that “necessity” has “mothered” have tremendous value in the rest of the tiers of computing Sensys Soapbox

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